The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 19, 1998

Filed:

Jul. 28, 1995
Applicant:
Inventors:

Edmund Ernst, Munich, DE;

Wolfgang Kosler, Munich, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395405 ; 395431 ; 395454 ; 395481 ; 395494 ; 36518901 ; 36518905 ; 36523004 ; 36523001 ;
Abstract

The method controls the sequence (Q) of accesses (Z) of a processor (MP) to an allocated memory (SP) that is formed by at least two individually addressable, static sub-memories or, respectively, memory banks (SRAM 0, 1). Using a drive logic (ASL) inserted between the processor (MP) and, for example, two sub-memories (SRAM 0, 1), a first memory address (sa1) is switched in conformity with an access cycle to the addressed sub-memory (SRAM 0, 1) in a first access (Z) of a sequence (Q), a memory link address (sfa1) for the further sub-memories (SRAM 0, 1) is formed, is switched thereto and a reading or writing of a data (d) is initiated based on the criterion of the status information (sti). Subsequently, the sub-memories (SRAM 0, 1) are cyclically successively driven, a respective data (d) is read or stored using an intermediate memory (ZSP) and a memory link address (sfa2, 3) is respectively formed such that the two sub-memories (SRAM 0, 1) are successively and cyclically driven. As a result of the method, an especially advantageous memory design for communication systems (KS), particularly for telecommunication private branch exchanges, is realized with static sub-memories (SRAM 0, 1), whereby the memory accesses (Z) of a sequence (Q) of accesses (Z) occur at maximum processor access speed.


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